FITS images used in this processing run:

Field UMi-02-Q2b1x1 reference image: UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Field UMi-02-Q2b1x1 reference image: UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
First image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Last  image: 2461296.81473183 13.09.2026 07:33:02.830   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 1
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.42
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 14 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  5919
Objects passed selection criteria:  5910
Measurements per detected object (mean, median, min, max):    3.2    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.2    4.0    2    4
Average stars detected per image: 4902.5
Average stars matched: 4800.25 (97.9143 %)
Memory usage VmPeak:   232800 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 11 14:55:52 CDT 2026
VaST build number  1.0rc89-210-g97d43bca
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-11)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Sep 13 03:37:36 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
First image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Last  image: 2461296.81473183 13.09.2026 07:33:02.830   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 18
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.15
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 26 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  32700
Objects passed selection criteria:  32628
Measurements per detected object (mean, median, min, max):    3.4    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.4    4.0    2    4
Average stars detected per image: 28781.2
Average stars matched: 28008.2 (97.3142 %)
Memory usage VmPeak:   257768 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 11 14:55:52 CDT 2026
VaST build number  1.0rc89-210-g97d43bca
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-11)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Sep 13 03:39:02 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
UMi-02-Q2b1x1
#######################################
########### Starting UMi-02-Q2b1x1 ###########
Processing UMi-02-Q2b1x1
server tau has sufficient free disk space available: 119787 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 119787 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Small preview (one of the new images): 

Large previews of the second-epoch (new) images:

MAKE_PNG_PLOTS=yes


renamed 'UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.png' -> 'transient_report/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits_preview.png'

UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits


renamed 'UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.png' -> 'transient_report/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits_preview.png'

UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 522.6192
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 519.1383
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1227.3162
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 440.2120
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1227.1115
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 438.6342
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.34839
INFO:                  SECOND_EPOCH__SD_ratio= 0.004
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     28.2900009155273 / [degC] Focuser temperature
AMBTEMP =                 28.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-13T02:32:16.6208431' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-13T07:32:16.6208431' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61296.3140812502 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-13T07:32:26.5246210' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61296.3141958797 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                  0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     215.998023028262 / [deg] RA of telescope" status=0
Record 32: "DEC     =      69.999762674189 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =                 16.3 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     348.872222222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.52179918957033 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMi-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '14 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20494 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20494 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.2900009155273 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.2900009155273 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.8 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 38.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               899.29 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 28.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                  4.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            16.601328 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             11.50092 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/d_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits :)

Spent 0.724651 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/d_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.2600002288818 / [degC] Focuser temperature
AMBTEMP =                 28.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-13T02:33:02.8301507' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-13T07:33:02.8301507' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61296.3146160878 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-13T07:33:12.7336589' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61296.3147307062 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     215.998023144783 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9997627052526 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     16.2691666666667 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     348.933055555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.52812648393384 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMi-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '14 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20494 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20494 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.2600002288818 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.2600002288818 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.8 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 38.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               899.29 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 28.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                  4.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            16.601328 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             11.50092 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/d_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits :)

Spent 0.684490 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/d_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Previews of the CALIBRATED second-epoch images:


fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits



fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
  
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.cat to cache
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461296.81419699
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits exists and is non-empty
wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (1st reference image)
verification OK: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Image size: 937.5'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 14:24:01.593 +69:59:33.71 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits (1st new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Image size: 937.5'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:24:00.227 +70:00:51.81 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:24:00.227 +70:00:51.81
Angular distance between the image centers 0.0218 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits (2nd new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Image size: 937.5'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:24:01.015 +70:00:10.88 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:24:01.015 +70:00:10.88
Angular distance between the image centers 0.0104 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  14:24:00.227 +70:00:51.81
Second-epoch second image center 14:24:01.015 +70:00:10.88
Angular distance between the image centers 0.01142 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits &> /tmp/tmp.hJAvW2lMb7
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits &> /tmp/tmp.IdAEYRMHBz
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits &> /tmp/tmp.KILczq2f0A
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits &> /tmp/tmp.ZWK7q16ShV
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Calibrating the magnitude scale
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat
The reference image (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits) and catalog (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat) found
'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat' -> 'wcsmag.cat'
Read 7945 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9719 to 243.8628 deg, Dec +63.6716 to +75.2389 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.9719 to 243.8628 deg, Dec 63.6716 to 75.2389 deg
Loaded 8088 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4821 out of 4988 total matches.
Matched with Tycho-2 4988 out of 7945 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.724700
a=0.000000 b=1.000000 c=22.724700
From vast_summary.log: estimated ref. image limiting mag.:  -7.42
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.30

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.30

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 7945 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9719 to 243.8628 deg, Dec +63.6716 to +75.2389 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.9719 to 243.8628 deg, Dec 63.6716 to 75.2389 deg
Loaded 8088 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4821 out of 4988 total matches.
Matched with Tycho-2 4988 out of 7945 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (aperture=6.3)
Read 7905 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9736 to 243.8628 deg, Dec +63.6717 to +75.2223 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.9736 to 243.8628 deg, Dec 63.6717 to 75.2223 deg
Loaded 8080 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4832 out of 4997 total matches.
Matched with Tycho-2 4997 out of 7905 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (aperture=6.3)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.4 pix  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 2.4 pix  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 2.2 pix  fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
 2.3 pix  fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Limiting magnitude estimates:
 15.3 mag.  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 15.3 mag.  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 14.6 mag.  fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
 14.6 mag.  fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
All-image limiting magnitude estimate:  14.6 (SNR )  11.6 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.hJAvW2lMb7 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=497, bad_region=1747, passed=7945
Got 7945 stars (including 5791 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
util/solve_plate_with_UCAC5 got 7945 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 4893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 6565 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 6565 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 6565 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4893 stars left (next iteration limit 5382)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits N_match=4893 sigma_overall_arcsec=0.363 sigma_q1_arcsec=0.332 sigma_q2_arcsec=0.358 sigma_q3_arcsec=0.394 sigma_q4_arcsec=0.383 n_q1=1741 n_q2=835 n_q3=1536 n_q4=781 worst_quadrant_to_overall_ratio=1.088
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.IdAEYRMHBz (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=492, bad_region=1720, passed=7905
Got 7905 stars (including 5780 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat 
util/solve_plate_with_UCAC5 got 7905 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 4888 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 6551 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 6551 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 6551 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4888 stars left (next iteration limit 5376)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits N_match=4888 sigma_overall_arcsec=0.362 sigma_q1_arcsec=0.318 sigma_q2_arcsec=0.377 sigma_q3_arcsec=0.401 sigma_q4_arcsec=0.390 n_q1=1726 n_q2=841 n_q3=1532 n_q4=789 worst_quadrant_to_overall_ratio=1.107
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.KILczq2f0A (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=246, bad_region=832, passed=4508
Got 4508 stars (including 3463 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat 
util/solve_plate_with_UCAC5 got 4508 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 3398 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3386 matched stars entering correct_measured_positions(), 3386 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3386 matched stars entering correct_measured_positions(), 3852 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 3398 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3387 matched stars entering correct_measured_positions(), 3852 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 3387 matched stars entering correct_measured_positions(), 3852 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 3387 stars left (next iteration limit 3724)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: SIP order 2 trial: matched=3387 robust_rms=6.366 arcsec worst_quadrant_rms=10.338 arcsec
SIP_REFIT: SIP order 3 trial: matched=3387 robust_rms=0.563 arcsec worst_quadrant_rms=0.680 arcsec
SIP_REFIT: SIP order 5 trial: matched=3387 robust_rms=0.429 arcsec worst_quadrant_rms=0.560 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3387 robust_rms_before=0.848 arcsec robust_rms_before_corrected=0.382 arcsec robust_rms_after=0.429 arcsec worst_quadrant_rms_before=0.501 worst_quadrant_rms_after=0.560
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.501 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits N_match=3387 sigma_overall_arcsec=0.375 sigma_q1_arcsec=0.343 sigma_q2_arcsec=0.363 sigma_q3_arcsec=0.395 sigma_q4_arcsec=0.504 n_q1=1265 n_q2=587 n_q3=1055 n_q4=480 worst_quadrant_to_overall_ratio=1.345
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.ZWK7q16ShV (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=253, bad_region=826, passed=4493
Got 4493 stars (including 3452 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat 
util/solve_plate_with_UCAC5 got 4493 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 3388 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3379 matched stars entering correct_measured_positions(), 3379 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3379 matched stars entering correct_measured_positions(), 3842 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 3388 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3380 matched stars entering correct_measured_positions(), 3842 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 3380 matched stars entering correct_measured_positions(), 3842 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 3380 stars left (next iteration limit 3716)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: SIP order 2 trial: matched=3380 robust_rms=6.155 arcsec worst_quadrant_rms=10.507 arcsec
SIP_REFIT: SIP order 3 trial: matched=3380 robust_rms=0.577 arcsec worst_quadrant_rms=0.692 arcsec
SIP_REFIT: SIP order 5 trial: matched=3380 robust_rms=0.433 arcsec worst_quadrant_rms=0.552 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3380 robust_rms_before=0.874 arcsec robust_rms_before_corrected=0.389 arcsec robust_rms_after=0.433 arcsec worst_quadrant_rms_before=0.459 worst_quadrant_rms_after=0.552
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.459 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits N_match=3380 sigma_overall_arcsec=0.383 sigma_q1_arcsec=0.357 sigma_q2_arcsec=0.356 sigma_q3_arcsec=0.407 sigma_q4_arcsec=0.430 n_q1=1267 n_q2=579 n_q3=1052 n_q4=482 worst_quadrant_to_overall_ratio=1.122
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits to local_wcs_cache/
'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits' -> 'local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits'
Saving the final (post-refit) wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits to local_wcs_cache/
'wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits' -> 'local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits'
Saving the final (post-refit) wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits to local_wcs_cache/
'wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits' -> 'local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits'
Saving the final (post-refit) wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits to local_wcs_cache/
'wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits' -> 'local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits sigma_overall=0.363 worst_q_ratio=1.088
ref2=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits sigma_overall=0.362 worst_q_ratio=1.107
new1=fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits sigma_overall=0.375 worst_q_ratio=1.345
new2=fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits sigma_overall=0.383 worst_q_ratio=1.122
reference average sigma_overall=0.3625 worst_q_ratio=1.0975
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659_astrometric_residuals.png (4893 matched stars from wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.32 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660_astrometric_residuals.png (4888 matched stars from wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.33 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138_astrometric_residuals.png (3387 matched stars from wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139_astrometric_residuals.png (3380 matched stars from wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits'
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits'
Preparing the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 0s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 1s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 06410_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 06410_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 3     2026 09 13.31473    2461296.81473    7.86    14:17:19.94 +66:47:40.7   5256 5109   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  14:17:19.92 +66:47:40.8 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
  
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.cat to cache
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Creating symlink local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits exists and is non-empty
wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (1st reference image)
verification OK: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Image size: 937.5'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 14:24:01.593 +69:59:33.71 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits (1st new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Image size: 937.5'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:24:00.227 +70:00:51.81 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:24:00.227 +70:00:51.81
Angular distance between the image centers 0.0218 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits (2nd new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Image size: 937.5'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:24:01.015 +70:00:10.88 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:24:01.015 +70:00:10.88
Angular distance between the image centers 0.0104 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  14:24:00.227 +70:00:51.81
Second-epoch second image center 14:24:01.015 +70:00:10.88
Angular distance between the image centers 0.01142 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits &> /tmp/tmp.BCJTfs4WKN
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits &> /tmp/tmp.ELwnocYS6v
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits &> /tmp/tmp.HvnM0mAU7I
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits &> /tmp/tmp.ho4HA77GAN
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Calibrating the magnitude scale
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat
The reference image (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits) and catalog (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat) found
'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat' -> 'wcsmag.cat'
Read 41527 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9292 to 244.1268 deg, Dec +63.6486 to +75.2502 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.9292 to 244.1268 deg, Dec 63.6486 to 75.2502 deg
Loaded 8148 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4639 out of 5092 total matches.
Matched with Tycho-2 5092 out of 41527 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.601600
a=0.000000 b=1.000000 c=22.601600
From vast_summary.log: estimated ref. image limiting mag.:  -7.15
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.45

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.45

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 41527 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9292 to 244.1268 deg, Dec +63.6486 to +75.2502 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.9292 to 244.1268 deg, Dec 63.6486 to 75.2502 deg
Loaded 8148 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4639 out of 5092 total matches.
Matched with Tycho-2 5092 out of 41527 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (aperture=4.9)
Read 41453 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9737 to 244.1235 deg, Dec +63.6500 to +75.2475 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.9737 to 244.1235 deg, Dec 63.6500 to 75.2475 deg
Loaded 8143 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4637 out of 5095 total matches.
Matched with Tycho-2 5095 out of 41453 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (aperture=4.9)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 13 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 2.2 pix  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 2.1 pix  fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
 2.1 pix  fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Limiting magnitude estimates:
 15.5 mag.  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 15.4 mag.  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 14.7 mag.  fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
 14.7 mag.  fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
All-image limiting magnitude estimate:  14.7 (SNR )  14.0 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.BCJTfs4WKN (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=13, blended=2144, bad_region=6622, passed=41514
Got 41514 stars (including 33273 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
util/solve_plate_with_UCAC5 got 41514 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4895 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 4890 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 36589 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4895 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 36589 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 36589 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4890 stars left (next iteration limit 5379)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits N_match=4890 sigma_overall_arcsec=0.361 sigma_q1_arcsec=0.327 sigma_q2_arcsec=0.373 sigma_q3_arcsec=0.388 sigma_q4_arcsec=0.381 n_q1=1740 n_q2=836 n_q3=1524 n_q4=790 worst_quadrant_to_overall_ratio=1.075
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.ELwnocYS6v (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=18, blended=2188, bad_region=6671, passed=41435
Got 41435 stars (including 33150 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat 
util/solve_plate_with_UCAC5 got 41435 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 4894 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 4889 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 36474 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4894 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 36474 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 36473 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4889 stars left (next iteration limit 5377)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits N_match=4889 sigma_overall_arcsec=0.358 sigma_q1_arcsec=0.317 sigma_q2_arcsec=0.379 sigma_q3_arcsec=0.402 sigma_q4_arcsec=0.380 n_q1=1732 n_q2=840 n_q3=1524 n_q4=793 worst_quadrant_to_overall_ratio=1.121
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.HvnM0mAU7I (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=7, blended=841, bad_region=3571, passed=26674
Got 26674 stars (including 22377 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat 
util/solve_plate_with_UCAC5 got 26674 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.5 to 75.3)
Done reading UCAC5 zone files...
Matched 4900 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 4893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 24010 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.5 to 75.3)
Done reading UCAC5 zone files...
Matched 4900 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4894 matched stars entering correct_measured_positions(), 24010 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 4894 matched stars entering correct_measured_positions(), 24010 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4894 stars left (next iteration limit 5382)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4894 robust_rms=5.925 arcsec worst_quadrant_rms=11.348 arcsec
SIP_REFIT: SIP order 3 trial: matched=4894 robust_rms=0.568 arcsec worst_quadrant_rms=0.669 arcsec
SIP_REFIT: SIP order 5 trial: matched=4894 robust_rms=0.438 arcsec worst_quadrant_rms=0.553 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4894 robust_rms_before=0.849 arcsec robust_rms_before_corrected=0.394 arcsec robust_rms_after=0.438 arcsec worst_quadrant_rms_before=0.459 worst_quadrant_rms_after=0.553
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.459 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits N_match=4894 sigma_overall_arcsec=0.388 sigma_q1_arcsec=0.360 sigma_q2_arcsec=0.376 sigma_q3_arcsec=0.401 sigma_q4_arcsec=0.473 n_q1=1841 n_q2=827 n_q3=1552 n_q4=674 worst_quadrant_to_overall_ratio=1.221
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.ho4HA77GAN (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=886, bad_region=3630, passed=26748
Got 26748 stars (including 22354 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat 
util/solve_plate_with_UCAC5 got 26748 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.5 to 75.3)
Done reading UCAC5 zone files...
Matched 4898 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4891 matched stars entering correct_measured_positions(), 4891 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4891 matched stars entering correct_measured_positions(), 24043 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.5 to 75.3)
Done reading UCAC5 zone files...
Matched 4898 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4891 matched stars entering correct_measured_positions(), 24043 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 4891 matched stars entering correct_measured_positions(), 24043 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 4891 stars left (next iteration limit 5380)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4891 robust_rms=5.841 arcsec worst_quadrant_rms=11.103 arcsec
SIP_REFIT: SIP order 3 trial: matched=4891 robust_rms=0.577 arcsec worst_quadrant_rms=0.719 arcsec
SIP_REFIT: SIP order 5 trial: matched=4891 robust_rms=0.440 arcsec worst_quadrant_rms=0.566 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4891 robust_rms_before=0.876 arcsec robust_rms_before_corrected=0.398 arcsec robust_rms_after=0.440 arcsec worst_quadrant_rms_before=0.459 worst_quadrant_rms_after=0.566
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.459 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits N_match=4891 sigma_overall_arcsec=0.395 sigma_q1_arcsec=0.377 sigma_q2_arcsec=0.357 sigma_q3_arcsec=0.425 sigma_q4_arcsec=0.467 n_q1=1838 n_q2=836 n_q3=1540 n_q4=677 worst_quadrant_to_overall_ratio=1.183
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Preparing the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits at 15:02:16.92 +66:14:52.2:  13.14 +/- 0.03  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits at 14:41:44.33 +69:56:49.8:  14.34 +/- 0.08  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits at 13:45:19.18 +72:55:54.8:  13.79 +/- 0.05  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits at 13:45:19.18 +72:55:54.8:  13.73 +/- 0.05  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits at 14:41:44.33 +69:56:49.8:  14.23 +/- 0.07  detection
Forced photometry reference-image weighted average:  13.76 +/- 0.04
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits at 15:02:16.92 +66:14:52.2:  13.14 +/- 0.03  detection
Forced photometry filter REJECTED candidate at 13:45:19.18 +72:55:54.8: ref_mag=13.76 +/- 0.04 new_mean_mag=13.6888 delta=0.07 (need > 0.90)
Forced photometry reference-image weighted average:  13.14 +/- 0.02
Forced photometry filter REJECTED candidate at 15:02:16.92 +66:14:52.2: ref_mag=13.14 +/- 0.02 new_mean_mag=13.3056 delta=-0.17 (need > 0.90)
Forced photometry reference-image weighted average:  14.28 +/- 0.05
Forced photometry filter REJECTED candidate at 14:41:44.33 +69:56:49.8: ref_mag=14.28 +/- 0.05 new_mean_mag=14.0827 delta=0.20 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 2s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
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Considering the candidate 52430_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52430_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 1     2026 09 13.31420    2461296.81420    14.19    14:41:44.42 +69:56:49.6   3872 3237   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Discovery image 2     2026 09 13.31473    2461296.81473    14.01    14:41:44.23 +69:56:50.0   3873 3231   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

  
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Considering the candidate 52436_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52436_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    14.20    15:10:50.44 +73:35:26.8   2710 0906   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  15:10:50.71 +73:35:27.8 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52438_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52438_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    13.93    15:37:24.94 +71:53:03.6   1317 1665   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  15:37:25.04 +71:53:03.5 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52440_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52440_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    13.54    15:32:02.31 +71:27:15.1   1502 1984   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  15:32:02.45 +71:27:15.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52443_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52443_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 1     2026 09 13.31420    2461296.81420    13.41    15:02:16.95 +66:14:51.5   2538 5382   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Discovery image 2     2026 09 13.31473    2461296.81473    13.23    15:02:16.88 +66:14:52.9   2538 5375   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

  
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Considering the candidate 52566_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52566_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    12.12    13:35:43.63 +72:38:29.8   6890 1300   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  13:35:43.59 +72:38:29.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52586_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52586_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    12.63    14:50:25.90 +74:12:32.8   3607 0633   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  14:50:25.62 +74:12:35.6 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 52618_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52618_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    12.91    13:43:16.57 +73:49:34.1   6411 0672   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  13:43:16.62 +73:49:34.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52759_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52759_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 1     2026 09 13.31420    2461296.81420    13.61    13:45:19.12 +72:55:53.9   6431 1230   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Discovery image 2     2026 09 13.31473    2461296.81473    13.82    13:45:19.23 +72:55:55.6   6431 1222   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

  
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Considering the candidate 52803_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52803_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    13.67    13:36:53.41 +69:46:13.1   7234 3004   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  13:36:53.51 +69:46:11.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52806_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 52806_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 2     2026 09 13.31473    2461296.81473    13.96    15:24:08.72 +71:32:54.4   1888 2014   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  15:24:09.05 +71:32:54.5 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 21609_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 21609_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 3     2026 09 13.31473    2461296.81473    10.39    14:41:41.50 +69:56:22.9   3875 3235   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

Rejecting candidate due to large distance (40.7") between the two second-epoch detections
  
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Considering the candidate 34626_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139
The candidate 34626_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139 did not pass the final checks
Discovery image 3     2026 09 13.31473    2461296.81473    7.87    14:17:19.93 +66:47:40.7   5256 5109   /data_ssd/NMW-TexasTech/workdir//img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits

**** FOUND  14:17:19.91 +66:47:40.8 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: measuring positions from /data_ssd/NMW-TexasTech/workdir/img_2026-09-13_CI_UMi-02-Q2b1x1_024916_TTUQ2b1x1_2425007_fknrpeRc/monitoring_positions.txt
Source monitoring: positions closer than 100 pix to a frame edge are recorded as edge
Read 26681 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.8268 to 243.9131 deg, Dec +63.5004 to +75.2990 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.8268 to 243.9131 deg, Dec 63.5004 to 75.2990 deg
Loaded 8281 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4907 out of 5142 total matches.
Matched with Tycho-2 5142 out of 26681 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Observation time (mid-exposure, UTC): JD 2461296.81420 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 216.00328 deg  Dec= +70.01525 deg
Frame center: alt= +16.411 deg  az= 346.784 deg  airmass= 3.4878
Header cross-check: CENTALT= 16.300 deg (difference +0.111 deg)
Header cross-check: AIRMASS= 3.5218 (we compute 3.4878)
Airmass zero-point fit: OK  k= +0.2648 +/- 0.0043 mag/airmass  N= 3794  airmass span 2.3789-6.5334  scatter 0.2001 mag
Source monitoring: airmass zero-point for wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits: OK +0.929512 -0.264805 3.4878 +0.2648 3794 4.1545 0.2001 2.3789 6.5334
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits list=monitoring_pixlist1434064.tmp aperture=4.8
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.027300
Forced photometry: center=(3171.66, 5455.09) aperture=4.8
Annulus: inner=9.60 outer=24.00 edge margin=100.00
Background annulus: 1521 pixels
Iterative clipping converged after 2 iterations, 1516/1521 pixels remain
SExtractor background: mode=776.53 median=777.00 mean=777.31 sigma=43.66 -> bg=776.53 (1516 pixels)
Aperture sum=14146.75 N_eff=18.0956
Net flux=95.00 noise=185.75 SNR=0.51
Instrumental magnitude: -6.8651
Calibrated magnitude: 15.1622
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits
Source monitoring: 1 position(s) measured on wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-32-16_20.00sec_0.00C_LIGHT_0138.fits (aperture 4.8 pix)
Read 26752 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.8316 to 244.0354 deg, Dec +63.4993 to +75.2884 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 187.8316 to 244.0354 deg, Dec 63.4993 to 75.2884 deg
Loaded 8294 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4898 out of 5138 total matches.
Matched with Tycho-2 5138 out of 26752 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Observation time (mid-exposure, UTC): JD 2461296.81473 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 216.00656 deg  Dec= +70.00388 deg
Frame center: alt= +16.371 deg  az= 346.849 deg  airmass= 3.4959
Header cross-check: CENTALT= 16.269 deg (difference +0.102 deg)
Header cross-check: AIRMASS= 3.5281 (we compute 3.4959)
Airmass zero-point fit: OK  k= +0.2587 +/- 0.0042 mag/airmass  N= 3805  airmass span 2.3917-6.5473  scatter 0.1996 mag
Source monitoring: airmass zero-point for wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits: OK +0.907971 -0.258666 3.4959 +0.2587 3805 4.1556 0.1996 2.3917 6.5473
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits list=monitoring_pixlist1434064.tmp aperture=4.8
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.022150
Forced photometry: center=(3172.43, 5448.37) aperture=4.8
Annulus: inner=9.60 outer=24.00 edge margin=100.00
Background annulus: 1520 pixels
Iterative clipping converged after 3 iterations, 1510/1520 pixels remain
SExtractor background: mode=776.88 median=778.00 mean=778.75 sigma=43.47 -> bg=776.88 (1510 pixels)
Aperture sum=14182.47 N_eff=18.0956
Net flux=124.41 noise=184.90 SNR=0.67
Instrumental magnitude: -6.8602
Calibrated magnitude: 15.1620
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits
Source monitoring: 1 position(s) measured on wcs_fd_UMi-02-Q2b1x1_2026-09-13_02-33-02_20.00sec_-0.00C_LIGHT_0139.fits (aperture 4.8 pix)
########### Completed UMi-02-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461296.81419699 -observatory V36
12:15:26.06 -01:11:30.6 Mercury (-0.5mag)
13:50:08.24 -16:40:04.1 Venus (-4.8mag)
07:30:04.52 +22:33:16.8 Mars (1.2mag)
09:13:56.26 +16:36:41.4 Jupiter (-1.8mag)
00:50:16.82 +02:28:27.4 Saturn (0.4mag)
04:13:41.90 +21:02:01.5 Uranus (5.7mag)
00:13:09.98 -00:07:07.7 Neptune (7.7mag)
20:25:12.22 -23:40:53.1 Pluto (14.5mag)
12:56:25.77 -10:40:23.6 Moon (-8.8mag)
-rw-r--r-- 1 apache apache 362 Sep 13 03:37 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461296.81419699:
09:13:52.10 +16:37:03.5 Io (6.0mag)
09:14:07.06 +16:35:47.7 Europa (6.2mag)
09:14:13.26 +16:35:15.8 Ganymede (5.6mag)
09:14:21.65 +16:34:35.9 Callisto (6.8mag)
09:11:56.32 +16:55:38.3 Himalia (15.7mag)
09:14:00.15 +16:36:23.2 Thebe (16.6mag)
09:11:28.96 +16:49:33.2 Elara (17.7mag)
09:17:40.28 +16:02:35.8 Pasiphae (17.9mag)
09:14:35.08 +16:56:07.8 Carme (18.9mag)
00:50:09.34 +02:28:00.0 Titan (8.3mag)
00:50:19.93 +02:28:08.1 Rhea (9.6mag)
00:50:14.88 +02:30:13.2 Iapetus (11.0mag)
00:50:21.85 +02:28:44.9 Hyperion (14.3mag)
00:48:57.50 +02:17:39.6 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep 13 03:37 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461296.81419699:
22:53:58.08 +07:05:02.0 JWST
18:59:48.71 +06:07:13.9 Chandra
11:13:15.77 -59:51:09.6 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep 13 03:37 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461296.81419699 -observatory V36
03:43:35.81 +19:35:52.1 17.3mag P/1996 R2 (Lagerkvist)
18:05:21.14 -34:05:50.7 14.4mag P/2010 H2 (Vales)
07:23:53.24 -70:38:32.3 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:16.62 +33:51:31.2 17.7mag C/2017 K2 (PANSTARRS)
22:08:47.70 +27:54:45.1 17.5mag C/2022 E2 (ATLAS)
07:14:36.26 +25:52:07.0 16.9mag C/2022 N2 (PANSTARRS)
10:55:01.48 +27:01:05.0 17.1mag C/2022 QE78 (ATLAS)
09:52:27.15 +05:11:57.3 18.0mag C/2022 R6 (PANSTARRS)
15:28:11.56 -16:10:33.2 14.9mag C/2023 R1 (PANSTARRS)
08:43:30.11 +33:16:45.1 15.9mag C/2024 E1 (Wierzchos)
15:07:29.18 +15:15:19.7 17.9mag C/2024 G6 (ATLAS)
18:30:15.64 +42:55:22.2 13.7mag C/2024 J3 (ATLAS)
20:18:12.27 +48:55:50.3 17.4mag C/2024 R4 (PANSTARRS)
05:38:36.91 -13:06:57.5 15.0mag C/2024 T5 (ATLAS)
07:13:29.00 +17:19:19.7 17.8mag C/2025 J1 (Borisov)
11:27:47.36 +18:17:40.8 16.7mag C/2025 V2 (Rankin)
13:24:40.89 -00:22:24.0 16.8mag C/2025 Y1 (ATLAS)
16:58:19.29 +72:59:00.1 16.0mag C/2026 A2 (Bok)
03:02:22.73 +45:54:11.5 17.5mag C/2026 B2 (Sun-Gao)
12:18:52.81 +11:46:29.6 17.6mag A/2026 E1
22:31:02.84 -35:14:32.2 13.6mag 10P/Tempel
01:28:52.94 +38:09:32.1 17.7mag 11P/Tempel-Swift-LINEAR
11:52:13.07 -05:55:30.6 16.3mag 29P/Schwassmann-Wachmann
12:20:41.15 -06:59:11.9 17.7mag 63P/Wild
06:50:43.98 +18:46:10.1 17.1mag 78P/Gehrels
03:17:02.24 +15:02:25.9 17.2mag 88P/Howell
05:58:29.83 +30:54:12.4 16.8mag 112P/Urata-Niijima
07:49:23.20 +23:12:36.8 15.8mag 114P/Wiseman-Skiff
10:41:14.82 +19:34:35.7 14.8mag 123P/West-Hartley
12:59:58.87 -23:24:37.4 17.5mag 124P/Mrkos
06:24:30.48 +20:26:32.9 15.9mag 128P/Shoemaker-Holt
02:04:13.37 -16:38:20.2 14.8mag 161P/Hartley-IRAS
09:09:46.70 +37:18:17.0 16.5mag 162P/Siding Spring
09:31:42.78 +10:25:48.3 13.4mag 169P/NEAT
03:28:48.93 +07:56:12.5 14.5mag 220P/McNaught
05:03:58.80 +38:08:46.9 15.3mag 260P/McNaught
08:47:46.27 +35:01:59.1 17.3mag 295P/LINEAR
15:29:17.17 -00:55:17.2 17.9mag 391P/Kowalski
09:32:55.98 +16:32:39.1 17.8mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.0K Sep 13 03:37 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.64 +34:24:35.00  SN2026aaiv  2026-09-7.25 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
-rw-r--r-- 1 apache apache 5.7K Sep 13 03:37 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
-rw-r--r-- 1 apache apache 190K Sep 13 03:37 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
02:34:40.939 +11:29:01.73  AT 2026zhs  2026-08-16.18 20.38
00:06:27.710 -42:59:59.51  AT 2026zhr  2026-08-13.97 17.978
22:15:35.625 -80:38:43.32  AT 2026zhq  2026-08-20.04 18.351
17:58:22.424 -86:55:56.22  AT 2026zhp  2026-08-16.83 19.182
01:43:25.365 -80:23:54.49  AT 2026zho  2026-08-14.07 18.558
23:16:01.325 -41:57:55.14  AT 2026zhn  2026-08-20.17 18.943
23:07:30.879 -67:00:48.59  AT 2026zhm  2026-08-20.07 18.916
00:52:12.375 -58:22:08.73  SN 2026zhl  2026-08-20.13 17.801
00:39:52.355 +03:55:55.21  AT 2026zhk  2026-08-07.32 17.8794
23:48:06.315 +08:48:24.68  AT 2026zhj  2026-08-12.44 20.7977
03:11:32.085 -07:13:41.59  AT 2026zhi  2026-08-07.75 19.73
03:47:50.700 -13:23:38.20  AT 2026zhh  2026-08-07.76 20.24
03:34:14.398 -29:40:47.85  AT 2026zhg  2026-08-19.79 20.11
02:19:14.333 -35:57:34.60  AT 2026zhf  2026-08-06.74 19.89
03:22:56.866 -13:06:39.74  SN 2026zhe  2026-08-15.81 19.92
04:00:32.743 -08:48:10.25  AT 2026zhd  2026-08-18.80 19.31
02:16:11.122 -35:21:41.09  AT 2026zhc  2026-08-19.77 19.78
02:13:56.802 -25:48:46.13  AT 2026zhb  2026-08-18.76 19.66
03:52:53.306 -14:19:29.84  SN 2026zha  2026-08-18.78 18.94
03:44:03.331 -29:49:21.39  AT 2026zgz  2026-08-18.78 20.07
-rw-r--r-- 1 apache apache 89K Sep 13 03:37 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sun Sep 13 03:36:31 CDT 2026
=======================================
TIMING SExtractor: 7 seconds
TIMING matching_and_photometry: 3 seconds
TIMING lightcurve_write: 2 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 14s (0.23 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 42s (0.70 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 9s (0.15 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 5s (0.08 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 72s (1.20 min)
TIMING SExtractor: 12 seconds
TIMING matching_and_photometry: 3 seconds
TIMING lightcurve_write: 4 seconds
TIMING select_aperture: 6 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 28s (0.47 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 29s (0.48 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 61s (1.02 min)
FIELD_UMi-02-Q2b1x1: 174s (2.90 min)
=======================================
TOTAL_RUNTIME: 191s (3.18 min)
Finished: Sun Sep 13 03:39:42 CDT 2026